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MCP19124 Datasheet(PDF) 174 Page - Microchip Technology |
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MCP19124 Datasheet(HTML) 174 Page - Microchip Technology |
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174 / 236 page ![]() FIGURE 28-13: I2C SLAVE, 10-BIT ADDRESS, RECEPTION (SEN = 0, AHEN = 1, DHEN = 0) Receive First Address Byte UA Receive Second Address Byte UA Receive Data ACK Receive Data 1 1 1 1 0 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 SDA SCL SSPIF BF ACKDT UA CKP ACKTIM 1 2 3 4 5 678 9 ACK ACK 12 3 456 78 9 12 3 4 5 6 7 8 9 1 2 Cleared by software Cleared by software R/W = 0 S Set by hardware on 9th falling edge Slave software clears ACKDT to ACK the received byte SSPBUF can be read anytime before the next received cycle Received data is read from SSPBUF Update of SSPADD, clears UA and releases SCL If when AHEN = 1: on the 8th falling edge of SCL of an address byte, CKP is cleared ACKTIM is set by hardware on 8th falling edge of SCL Update to SSPADD is not allowed until 9th falling edge of SCL Set CKP with software releases SCL |
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